AS_HELP_STRING([--enable-systemd], [enable Systemd support]))
AC_ARG_ENABLE(poll,
AS_HELP_STRING([--enable-poll], [enable usage of Poll instead of select]))
-AC_ARG_ENABLE(mpls,
- AS_HELP_STRING([--enable-mpls], [enable MPLS support - requires compatible kernel]))
AC_ARG_ENABLE(werror,
AS_HELP_STRING([--enable-werror], [enable -Werror (recommended for developers only)]))
AC_ARG_ENABLE(cumulus,
dnl ----------
MPLS_METHOD=""
AC_MSG_CHECKING(whether this OS has MPLS stack)
-if test "x${enable_mpls}" = "xyes"; then
- case "$host" in
- *-linux*)
- AC_DEFINE(HAVE_MPLS,,Enable MPLS)
- MPLS_METHOD="zebra_mpls_netlink.o"
- AC_MSG_RESULT(Linux MPLS)
- ;;
- *-openbsd*)
- AC_DEFINE(HAVE_MPLS,,Enable MPLS)
- MPLS_METHOD="zebra_mpls_openbsd.o"
- AC_MSG_RESULT(OpenBSD MPLS)
- ;;
- *)
- AC_MSG_RESULT(Unsupported kernel)
- MPLS_METHOD="zebra_mpls_null.o"
- ;;
- esac
-else
- AC_MSG_RESULT(disabled)
- MPLS_METHOD="zebra_mpls_null.o"
-fi
+case "$host" in
+ *-linux*)
+ MPLS_METHOD="zebra_mpls_netlink.o"
+ AC_MSG_RESULT(Linux MPLS)
+ ;;
+ *-openbsd*)
+ MPLS_METHOD="zebra_mpls_openbsd.o"
+ AC_MSG_RESULT(OpenBSD MPLS)
+ ;;
+ *)
+ MPLS_METHOD="zebra_mpls_null.o"
+ AC_MSG_RESULT(Unsupported kernel)
+ ;;
+esac
AC_SUBST(MPLS_METHOD)
if test "${enable_cumulus}" = "yes" ; then
#include "privs.h"
#include "if.h"
-#if defined HAVE_MPLS && defined __OpenBSD__
+#ifdef __OpenBSD__
#include <netmpls/mpls.h>
#endif
struct sockaddr sa;
struct sockaddr_in sin;
struct sockaddr_in6 sin6;
-#if defined HAVE_MPLS && defined __OpenBSD__
+#ifdef __OpenBSD__
struct sockaddr_mpls smpls;
#endif
};
#include <zebra.h>
#include <net/if_types.h>
-#if defined HAVE_MPLS && defined __OpenBSD__
+#ifdef __OpenBSD__
#include <netmpls/mpls.h>
#endif
msg.rtm.rtm_addrs = RTA_DST;
msg.rtm.rtm_addrs |= RTA_GATEWAY;
msg.rtm.rtm_flags = RTF_UP;
-#if defined HAVE_MPLS && defined __OpenBSD__
+#ifdef __OpenBSD__
msg.rtm.rtm_flags |= RTF_MPATH;
msg.rtm.rtm_fmask = RTF_MPLS;
#endif
else if (message == RTM_ADD)
msg.rtm.rtm_flags |= RTF_HOST;
-#if defined HAVE_MPLS && defined __OpenBSD__
+#ifdef __OpenBSD__
if (mpls)
{
msg.rtm.rtm_addrs |= RTA_SRC;
SOCKADDRSET (dest, RTA_DST);
SOCKADDRSET (gate, RTA_GATEWAY);
SOCKADDRSET (mask, RTA_NETMASK);
-#if defined HAVE_MPLS && defined __OpenBSD__
+#ifdef __OpenBSD__
SOCKADDRSET (mpls, RTA_SRC);
#endif
zebra_debug_init ();
router_id_cmd_init ();
zebra_vty_init ();
-#if defined(HAVE_MPLS)
- zebra_mpls_vty_init ();
-#endif
access_list_init ();
prefix_list_init ();
#if defined (HAVE_RTADV)
#endif
zebra_mpls_init ();
+ zebra_mpls_vty_init ();
/* For debug purpose. */
/* SET_FLAG (zebra_debug_event, ZEBRA_DEBUG_EVENT); */
extern int kernel_add_lsp (zebra_lsp_t *);
extern int kernel_upd_lsp (zebra_lsp_t *);
extern int kernel_del_lsp (zebra_lsp_t *);
-extern void mpls_kernel_init (void);
+extern int mpls_kernel_init (void);
#endif /* _ZEBRA_RT_H */
*/
#include <zebra.h>
-#if defined HAVE_MPLS && defined __OpenBSD__
+#ifdef __OpenBSD__
#include <netmpls/mpls.h>
#endif
{
struct sockaddr_in *mask = NULL;
struct sockaddr_in sin_dest, sin_mask, sin_gate;
-#if defined HAVE_MPLS && defined __OpenBSD__
+#ifdef __OpenBSD__
struct sockaddr_mpls smpls;
#endif
union sockunion *smplsp = NULL;
mask = &sin_mask;
}
-#if defined HAVE_MPLS && defined __OpenBSD__
+#ifdef __OpenBSD__
if (nexthop->nh_label)
{
memset (&smpls, 0, sizeof (smpls));
DEFINE_MTYPE_STATIC(ZEBRA, SNHLFE, "MPLS static nexthop object")
DEFINE_MTYPE_STATIC(ZEBRA, SNHLFE_IFNAME, "MPLS static nexthop ifname")
+int mpls_enabled;
+
/* Default rtm_table for all clients */
extern struct zebra_t zebrad;
void
zebra_mpls_init (void)
{
- mpls_kernel_init ();
+ if (mpls_kernel_init () < 0)
+ {
+ zlog_warn ("Disabling MPLS support (no kernel support)");
+ return;
+ }
+
+ mpls_enabled = 1;
mpls_processq_init (&zebrad);
}
void
zebra_mpls_init (void);
+/*
+ * MPLS VTY.
+ */
+void
+zebra_mpls_vty_init (void);
+
/* Inline functions. */
/*
return ((zvrf->mpls_flags & MPLS_FLAG_SCHEDULE_LSPS) ? 1 : 0);
}
+/* Global variables. */
+extern int mpls_enabled;
+
#endif /*_ZEBRA_MPLS_H */
return 0;
}
-void mpls_kernel_init (void) {};
+int
+mpls_kernel_init (void)
+{
+ struct stat st;
+
+ /*
+ * Check if the MPLS module is loaded in the kernel.
+ */
+ if (stat ("/proc/sys/net/mpls", &st) != 0)
+ return -1;
+
+ return 0;
+};
int kernel_add_lsp (zebra_lsp_t *lsp) { return 0; }
int kernel_upd_lsp (zebra_lsp_t *lsp) { return 0; }
int kernel_del_lsp (zebra_lsp_t *lsp) { return 0; }
-void mpls_kernel_init (void) {};
+int mpls_kernel_init (void) { return -1; };
}
#define MAX_RTSOCK_BUF 128 * 1024
-void
+int
mpls_kernel_init (void)
{
int rcvbuf, default_rcvbuf;
socklen_t optlen;
if ((kr_state.fd = socket(AF_ROUTE, SOCK_RAW, 0)) == -1) {
- zlog_warn("kr_init: socket");
- return;
+ zlog_warn("%s: socket", __func__);
+ return -1;
}
/* grow receive buffer, don't wanna miss messages */
; /* nothing */
kr_state.rtseq = 1;
+
+ return 0;
}
#include <zebra.h>
-#if defined(HAVE_MPLS)
-
#include "memory.h"
#include "if.h"
#include "prefix.h"
return CMD_SUCCESS;
}
+DEFUN (show_mpls_status,
+ show_mpls_status_cmd,
+ "show mpls status",
+ SHOW_STR
+ "MPLS information\n"
+ "MPLS status\n")
+{
+ vty_out (vty, "MPLS support enabled: %s%s", (mpls_enabled) ? "yes" :
+ "no (mpls kernel extensions not detected)", VTY_NEWLINE);
+ return CMD_SUCCESS;
+}
+
/* MPLS node for MPLS LSP. */
static struct cmd_node mpls_node = { MPLS_NODE, "", 1 };
void
zebra_mpls_vty_init (void)
{
+ install_element (VIEW_NODE, &show_mpls_status_cmd);
+ install_element (ENABLE_NODE, &show_mpls_status_cmd);
+
+ if (! mpls_enabled)
+ return;
+
install_node (&mpls_node, zebra_mpls_config);
install_element (CONFIG_NODE, &ip_route_label_cmd);
install_element (VIEW_NODE, &show_mpls_table_lsp_cmd);
install_element (ENABLE_NODE, &show_mpls_table_lsp_cmd);
}
-
-#endif /* HAVE_MPLS */
in_label = stream_getl (s);
out_label = stream_getl (s);
+ if (! mpls_enabled)
+ return;
+
if (command == ZEBRA_MPLS_LABELS_ADD)
{
mpls_lsp_install (zvrf, type, in_label, out_label, gtype, &gate,
extern void zebra_route_map_init (void);
extern void zebra_snmp_init (void);
extern void zebra_vty_init (void);
-#if defined(HAVE_MPLS)
-extern void zebra_mpls_vty_init (void);
-#endif
extern int zsend_vrf_add (struct zserv *, struct zebra_vrf *);
extern int zsend_vrf_delete (struct zserv *, struct zebra_vrf *);